Home / 87,756.48-120,974.64-62,183.84

Finding the Fourth Proportional to 87,756.48, 120,974.64 and 62,183.84

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Solution

The fourth proportional to 87,756.48, 120,974.64 and 62,183.84 is: 85,722.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,756.48 : 120,974.64 = 62,183.84 : x
  2. Step 2: Convert to fraction form
    87,756.48/120,974.64 = 62,183.84/x
  3. Step 3: Cross multiply
    87,756.48x = 120,974.64 × 62,183.84
  4. Step 4: Simplify right side
    87,756.48x = 7,522,667,657.82
  5. Step 5: Solve for x
    x = 7,522,667,657.82/87,756.48
  6. Step 6: Final answer
    x = 85,722.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.